May 31, 2026
Description
This is a minimalist, heavy-duty mount designed to attach the original Prusa MK3 MK4 spool holder directly to the edge of a shelf, board, or workbench. It frees up valuable desk space around your printer and keeps the filament feeding smoothly from above.
If you are running a Prusa MINI setup and want a clean, space-saving workshop layout, this is the ideal solution.
Perfect Fit: Tailored specifically to clamp the stock Original Prusa spool holder mechanism.
Space Saver: Clears up your printing area by moving the spool setup onto an overhanging shelf or board.
Solid Mounting: Countersunk holes ensure the screws sit flush, preventing any interference with the spool holder itself.
Material: PETG or ASA recommended for long-term mechanical stability under load
Infill: $25\% - 30\%$ (Grid or Gyroid) for optimal structural strength.
Perimeters: 3 to 4 walls for stable screw connections.
Supports: Not required if printed in the correct orientation (place the flat, wide mounting surface down on the heatbed).
3x Countersunk wood screws (Senkkopfschrauben) – 1 for the top, 2 for the front face.
Tip: Make sure to mount it close enough to your printer so the PTFE tube or filament guide can reach the extruder without tension, just like shown in the community pictures.
Happy printing! If you like this design, feel free to upload a make and leave a review.
License:
Creative Commons — Attribution
7
Graubart
